13.5.9 Address match detection method ...................................................................................... 541
13.5.10 Error detection .................................................................................................................... 541
13.5.11 Extension code ................................................................................................................... 542
13.5.12 Arbitration ........................................................................................................................... 543
13.5.13 Wakeup function ................................................................................................................ 545
13.5.14 Communication reservation ............................................................................................... 548
13.5.15 Cautions ............................................................................................................................. 552
13.5.16 Communication operations ................................................................................................ 554
13.5.17 I
2
C interrupt request (INTIICA0) generation timing ............................................................ 564
13.6 Timing Charts ............................................................................................................................... 585
CHAPTER 14 INTERRUPT FUNCTIONS ..................................................................... 600
14.1 Interrupt Function Types ............................................................................................................... 600
14.2 Interrupt Sources and Configuration ............................................................................................. 600
14.3 Registers Controlling Interrupt Functions ..................................................................................... 605
14.3.1 Interrupt request flag registers (IF0L, IF0H, IF1L, IF1H) ................................................... 607
14.3.2 Interrupt mask flag registers (MK0L, MK0H, MK1L, MK1H) .............................................. 609
14.3.3 Priority specification flag registers (PR00L, PR00H, PR01L, PR01H, PR10L, PR10H,
PR11L, PR11H) ................................................................................................................. 610
14.3.4 External interrupt rising edge enable register (EGP0), external interrupt falling edge
enable register (EGN0) ...................................................................................................... 612
14.3.5 Program status word (PSW) .............................................................................................. 613
14.4 Interrupt Servicing Operations ...................................................................................................... 614
14.4.1 Maskable interrupt request acknowledgment .................................................................... 614
14.4.2 Software interrupt request acknowledgment ..................................................................... 617
14.4.3 Multiple interrupt servicing ................................................................................................. 617
14.4.4 Interrupt request pending ................................................................................................... 622
CHAPTER 15 STANDBY FUNCTION ........................................................................... 624
15.1 Overview ....................................................................................................................................... 624
15.2 Registers controlling standby function .......................................................................................... 625
15.3 Standby Function Operation ......................................................................................................... 625
15.3.1 HALT mode ........................................................................................................................ 625
15.3.2 STOP mode ....................................................................................................................... 629
CHAPTER 16 RESET FUNCTION ................................................................................ 635
16.1 Timing of Reset Operation ............................................................................................................ 637
16.2 States of Operation During Reset Periods ................................................................................... 639
16.3 Register for Confirming Reset Source .......................................................................................... 641
16.3.1 Reset Control Flag Register (RESF) .................................................................................. 641
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